"The grim shaft that they call the Guardian of the North is beckoning to them," said Mors Kajak sadly, "just as it beckoned to Tardos Mors and his great fleet; see where they lie, crumpled and broken, a grim and terrible monument to the mighty force of destruction which naught can resist." I, too, saw; but something else I saw that Mors Kajak did not; in my mind's eye I saw a buried chamber whose walls were lined with strange instruments and devices. In the centre of the chamber was a long table, and before it sat a little, pop-eyed old man counting his money; but, plainest of all, I saw upon the wall a great switch with a small magnet inlaid within the surface of its black handle. Then I glanced out at the fast-approaching fleet. In five minutes that mighty armada of the skies would be